北宋后期，一位四川商人在当地购买一批蜀锦，他最方便使用的货币是（　　）

【历史——选修3：20世纪的战争与和平】

材料：1940年7月底，德国秘密制定侵略苏联的计划……如何摆脱来自东方日本的威胁，重新成为苏联必须严重考虑的外交问题……还在1940年7月，日本大本营与政府联席会议通过了《适应世界形势演变处理时局纲要》，规定调整苏日关系以适应南进之需。1941年4月13日，苏联、日本达成了《苏日中立条约》。条约除了肯定双方保持和平友好关系，互相尊重领土主权完整，在一方与第三国发生军事冲突时保持中立以外，还特别声明：“日本须尊重蒙古人民共和国即外蒙古的领土完整和不可侵犯；苏联须尊重满洲国的领土完整和不可侵犯”。中国自然成为这两个国家相互妥协的最直接受害者……不过同时由于国际形势并未按苏联领导人的意志发展，苏联对华援助并未停止，延续到苏德战争爆发。条约稳定了苏联的东部边界，但激化美、英同日本的矛盾……太平洋战争爆发后，中国抗日战争的外援主要依赖美英。

——改编自李嘉谷《论<苏日中立条约>的签订及其对中国抗战的实际影响》

健康的生活方式有利于提高生活质量，下列属于健康生活方式的是（   ）

    Chester is one of the best cities in the UK. As soon as you arrive in Chester you will appreciate the city's unique atmosphere and sense his history. Founded by the Romans over 2,000 years ago, much of the Roman influence remains and Chester's city walls are the most complete in Britain. Combined with history and heritage (遗产), Chester is a lively city full of bars, pubs, clubs, hotels, and restaurants for you to discover, attracting you to visit again and again.

    Travelling to Chester

    Chester is easily accessible by many means of transport—whether you are travelling by rail, car, bus or plane. Please check our route planner below to help you plan your journey to Chester. Once you arrive in the city there are numerous car parks; however, during rush hours the easiest way to travel is by bus.

    Hotel

    From bed & breakfast to the luxury of Chester's only five star hotel, Chester has all covered. Whether your trip is for business or pleasure, your room is just a click away!

    Sightseeing and Tours

    The best way to see Chester is by a guided tour. If you join one, you still have a variety to choose from. Whether you choose the traditional guided walk, to be guided around Chester historical landmarks by bus or to take a boat down the River Dee, you will sure enjoy the delights of Chester.